Leather-splitting machine.



K. ZIMD/IERMANN.

LEATHER sPLmlmG' MACHINE.

APPLxcATxoN man 1ML 11. 191s.

K. ZIMMERMANN.

LEATHER summe MACHINE.

v APPLICATION FILED JAN- IY. 1919. 'LQLYD Pa'temed Deo. 30,1919.

3 SHEETS-SHEET 2.

o Lf fr I?? E622 for K. ZIMMERII/IANN.

LEATHER SPLIUING MACHINE.

APPLICATION FILED JAN. I?. 19'19.

@QINI II 7 Patented Dec. 30, 1919.

3 SHEETS-SHEET 3.

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Specification of Letters fatent.

Patented Bec. dll, iltllfd.

Application lcc'l January l?, 1919. Serial No. 271,646.

l To all whom it may concern.'

lll

Be it known that l', Kaur.' @traumatisme a citizen of Germany, residingat St. Gregor, in the Province of Saskatchewan, in the Dominion ofCanada7 have invente(l certain nevv and useful Improvements in Leather-Splitting Machines, of which the following' is a specication.

This invention relates to improvements in leather splitting or skivingmachines and its chief object is to provide a machine of this typo thatcan be adjusted to cnt longitudinally or split Welts, strips of leatherstock` Means or large pieces of leather stock. are provided for soadjusting the cutting mechanism that the Work rnay be split into twolayers of' equal thickness, or that layers of unequal thickness may becnt as desired. With the foregoing and other objects in view theinvention consists in the combination and arrangement of parts to behereinafter fully described, pointed out in the appended. claims andillustrated in the accornpanyingn drawings which form a part of thisspecilication and in Which- Figure l is a view of my improved. inachinein side elevation.

Fig. 2 is an end vievv of the machine vvith a portion of the rollsbroken away to show the knife blade.

Fig. 3 is an enlarged fragmentary view of a type of bearing employed.

Fig. 4i is a 'vertical sectional view through Like reference charactersdenote corresponding parts throughout the several views.

My machine comprises the frame l provided with the apertured feed tahle2 having the support 3. The table proiects beyond the front end of theframe andis adapted to receive the leather 4 to be cnt. The top of 'thcframe is formed with perforations to receive the rolls employed and thesides of the frame are formed with pcrforations 5, G and in theperforations 5, disposed belou7 the table 2, are the two-piece bearings7, the con'iponent parts of said bearings being connected by the bolts 8which extend through said bearings and into the frame' and which areprovided with the nuts 9. each of said bearings one end of one et theshafts l0, 11 is journaled, said shafts extending transversely of theframe l and being; pro vided, respectively, with the teed rollers lf2,i3, said rollers being fast upon said shafts.

Directly above the chatte l0, ill. elicits tot,

l are arranged in bearingsla disposed in perforations 6 of the frame,said bearings 7a being connected by bolts '7c and being similar to thebearings 7 except that springs 7* are arranged upon the bolts 8il andspace the bearings away from the upper end of the perforated portion 6.Upon the shafts llt, l5 gage rollers 16, 17 are made fast. Norinally therollers 16, 17 are kept in frictional engagement With the rollers l2, 13through gravity and through action of the springs 7b. The shaft l() isprovided With a pulley 18 adapted to receive povvcr by means of theusual belt running to the engine or motor shaft. The shafts l0, 14 areprovided with the large gear Wheels 19, 20, the teeth of which are deepset and are constantly in mesh so that the shaft l0 drives the shaft is.The shafts l0, ll are provided with small sprocket Wheels 21, 22 Whichare connected by sprocket chain 23a so that shaft drives the shaft 1l.The shafts let, l5 are each provided with sprocket Wheels 24 which areconnected by a sprocket chain 25 so that the shaft 1.4 drives the shaftl5. ln the rear end of the franic in pcrforations (3 two-piece bearings7@ are arranged upon ,guide bolts 8, springs Tb serving* to yieldinglypress said bearings toward the shafts 1l, l5. Shafts 26, 27 are arrangedin the upper and lower portions, respectively, on the rear end of thefreine in 'the bearings 7, said shafts carrying the rollers 2d, 29 whichthrough. the medium of spring 7l abutting said bearings are yieldinglyrew tained in frictional engagement Ywith 'the rollers ll", 13. Therollers Q8, 29, then, have, as Well their rotary motion, a n'iovcn'ientlongitudinally of the frame l. v

The said shafts Q6, 27 are provided with pulleys 30, 3l, the latterbeing a double pnlley, which are connected by belt 32 and the shaft ilprovided with pulley 3 connected by belt/35 to pulley 3l, so shafts 2G,2? are driven by the shaft ll. Fast to the shaft l5 is a linlr which isconnected Joy pivot 37 to a cani gear 38 which is secured by pivot 39 tothe frame l, the teeth of said cani gear being in mesh with the teeth ofanother cani gear l0 which is arranged upon earn shaft di. that entendstransverselv the fraaie and is journal .l therein, s gear 'd-d heine;pivotally te nested screw-holt 553 to the turche vvl'iich tnrnhacldealso remires a cere i which la certificated d that the shaft that isarranged in bearings 46 which are slidingly disposed in perforations 47formed in the frame 1, springs 49 yieldingly spacing the said slidingbearings away from one end of the perforations 47. The knife 48 extendstransversely of the frame `1 and its shaft 45 is supported in the saidscrew-bolt 44 and in a similar screw-bolt 44:L at the opposite side ofthe frame with reference to bolt 44, said bolt 44l engaging a turnbuckle432L which is connected also to one end of another screw-bolt 42a whichengages with one endof the cam shaft 41. The knife 48 is provided withthe cutting blade which may be inserted into and removed from the knifeframe through a .perforation 51 formed in the frame 1. rEhe knife bladeis disposed normally at the point of contact of the roller 17 with theroller 13.

As the leather 4 is moved by hand over the table 2 at the front end ofthe machine it encounters the rollers 12, 16 between which it is drawnby the movement of said rollers. The rollers are thus spread apart bythe work `which is fed along the table 2 into engagement with therollers 13, 17.between which it is forced or drawn, when it is engagedand cut or split by the knife blade 50. The work inpassing between therollers 13, 17 raises the roller 17 slightly together with the shaft 15which raises the link 36 and partly rotates the cani gear 38 whichpartially rotates the cam gear 40 and its shaft 4l, said cam gear andcam shaft through the medium of the screw-bolts and turnlouckles raisingthe knife shaft 45 to gether with the knife and its blade so that theknife blade will be disposed midway, or any other predetermineddistance, between the rollers 13, 17 so that it may be -properlypositioned for operative engagement with the leather. By means of theturnbuckles 43, 43a and the screw-bolts the knife shaft may. be set tofollow the upward movement of the roller 17 in a greater or less degree,as desired, so that the leather may be split exactly in half or arelatively thin upper or lower strip may be ent as desired. It isobvious that by means of the turnbuekle the spring 49' may be compressedmore or less thus adjusting the knife shaft to follow the movement ofthe roller 17 at a greater or less distance therefroi'n. The knife shaftis pivotally supported by the screw-bolts 44, 44a. The leather passingbeyond the knife blade passes over the knife frame. one strip passingbetween the roller 28 and a work guide 52 to the table 53 and the other'strip passing between the roller 29 and a work guide 54 to the saidtable. The cut leather strips passing beyond the knife frame force therollers 28, 29 longitudinally of the frame away from the rollers 17',13.

said feed rollers through openings in said feed table, a pair of guiderollers arranged in the rear end of said frame and yieldingly retainedin frictional engagement with said feed and gage rollers, and a knifeadj ustably supported in said frame, the blade of said knife beingpositioned adjacent the point of contact of two of said rollers. 2. 1n aleather splitting machine, a frame, a feed table arranged in said frame,a set of feed rollers, arranged in said frame below said feed table, aset of gage rollers arranged in said frame above said feed table andadapted for yielding frictional engagement with said feed rollersthrough openings in said feed table, a knifelolock, a shaft for saidknife block, meshing cam gears pivotally carried by said frame, anadjustable connection between one of said cam gears and said knifeshaft, a connection between the other caml gear and the shaft of one ofsaid gage rollers, a pair of guide rollers arranged in the rear end ofsaid frame and yieldingly retained in frictional engagement with saidfeed and guide rollers, and a blade removably carried by said knifeblock and disposed adjacent the point of contact of one of said feedrollers with one of said gage rollers.

3. In avleather splitting machine, a frame, -a feed table arranged insaid frame, a set of feed rollers arranged in said frame, a set of gagerollers arranged in said frame for coperation with said feed rollers,said gage rollers being movable with relation to said feed rollers, aset of guide rollers arranged in said frame for coperation with saidfeed and gage rollers, said guide rollers being movable at right anglesto the plane of movement of said gage rollers, a knife block arranged insaid frame between said gage, feed, and guide rollers, said knife blockbeing adjustably connected to a gage roller to follow the movement ofsaid gage roller at a greater or less distance therefrom, and a bladecarried by said knife block, said blade being normally disposed adjacentthe point of Contact of one of said feed rollers with one gage roller.

4. In a leather splitting ma chine, a frame, a feed table arranged insaid frame, a set of feed-rollers arranged in said frame. a set ofvertically movable gage rollers arranged in said frame for cooperationwith said feed rollers, a set of horizontally movable guide rollersarranged in said frame for cooperation with said feed and gage rollers,

a knife block Carried in said frame e011- In testimony the Gleim theforegoing 10 ne'eted to e gage roller by connections eepeas my own havehefcezo exed my signaole of adjustment to cause it te autemetture in thepresence of two subscribing cally follow -the movement of said" gageWitnesses. relier et a greater or less dssta'nee' theefrom, end e 4bladecarried 'by Seid knife block and nomelly disposed adjacent theWitnesses: point of Contact of one o said feed Tellers KARL KIEFER, withone gege roler, Y l JOSEPH BQEHLER.

